Improvement in pumps



PATENTED JULY 14, 1863.

B. HOLLY.

PUMP. Jy 4/ PATENT OFFICE., I

BIRDSILL HOLLY, OF LOCKPORT, NEW YORK.

IMPRVEMENT 'IN PUMPS.

Specification forning part of Letters Patent No. 39,259, dated July 14,1863 To all whom it may concer:

Be 'it known that I, BIRDSILL HOLLY, of Lockport, in the county ofNiagara and State i of New York, have invented certain new and usefulImprovements in Pumps; and I do hereby declare that the following is afull and exact description of the same, reference beh g had to theaccompanying drawings, making part of this specification.

Figure 1 is a central vertical section of a pump-cylinder with myinprovements applied thereto; Fig. 2, a perspective view of the pistondetaehed; Fig. 3, a perspective view of the independent Valve ring or'support, and its valve-ring detached.

Like letters of reference indicate corre sponding parts in all thefigures.

In ordinary punps the lower or .induct'o valve is formed by cutting itout of the proper form and size from the center of the leather disk thatforms the paeking be ween the bottom of the cylinder and the base of thepunp. The valve is thus stationary, and cannot be removed tor repairs,except by detaching the bolts and separating the cylinder and base.

My invention consists, first, in the employment of an independent ringor support, B, Figs. l and 3, of suitable size and weight, to which` thelower valve, 0, is secured by a leather hinge, a or in any convenientmanner. This ring is made` hollow or open inside, as shown at b, theopening'being of sufficient size to receive a raised flange, d, of

I the rim below, which flange forms the Valveseat; and it also has onits periphery, at proper distances apart, vertical ribs e e', orequivalent, projecting a. little beyond, which ribs fit close] y buteasily within the pumpcylinder A when in place, while the main peripherydoes not touch at all. A portion, f, 'of the Valvesupport is madethinner and of less weight than 'the other sides, as represented mostclearly in Fig. This valve-support, resting thus loosely inthepump-cylinder, can be removed at anytime for repairs or otherwisewithout trouble and without taking apart the Pu'mp. This is a greatconvenience, and saves much time and expense.. In these respects it ismuch superior to a v'alve-support that is secured in place byscrew-threads. The support is retained in place by its own weight, whichis sufficient to more than counterbalance the tendency to rise as thepis'ton is ordinarily worked, the valve opening readily for the passageof the water. It', however,fron1 an intense action of the punp, itshould have a tendency to rise, the thin light side f will do so first,the ribs e e thus binding against' the sides of the cylinder, as theirsupport is inclined, and preventing itfro'm being displaced. The deviceaccomplishes this result perfectly, holding the support'in place underall circumstances, so that the valve will shut down closely on i'tsseat. In addition to these advantages, by the use of the ribs I bringonly those projeeting portions of the per'i'pheryin contact with-thesides of the cylinder, thus preventing the oxidation of the metal standing in the water from making it fast to the cylinder, as it would do ifthe who e periphery came in oentact with the same. 'In or-detto' usethis' pecularly-shaped valve ring or support, it is necessary that thetlan ge d forming the seat, should project up, as indicated'. .Thisforms. 'a thin rim with a' plane surface, on which the val-ve;strikesand'packs perfectly. The seat must be of th. form to make the valve andsupport operative. 'In addition to thus forming a seat, it serves asa-base of resistance-to the rising of the valve support by the latterwedging between it and the sides of the oylinder, when the said supportis inclined.

My invention further consists in the pecu-:

lar form and Construction of the induetionvalve attached to the ring orsupport above: described, andits connection with the pisten 'andeduction-valve above. The result desired to be Secured by thearrang'ement is to trip or open both valves to allow the water to run-Aback, to prevent freezing in cold weather.

To accomplish this effect, I make the valve C with its rear part, orthat which forms the projection g, of greater 'vertical thickness thanthe opposite forward portion', h, the device be- "a base-ring, i, havinga vertical flaige, around which fits the ring of the upper. portion, k,with the' packing l intermediate, as usual.

The base-ring has a central hub, m, with radial arms, leavingintermediate spaces, n n, for the passage of 'the' water. Into this hubscrews the end of the pi'ston-rod G, passing loosely through'thebearin'g o of the upper portion, 7:7, and having a nnt, p, screwing ontop, above the letter,- to tighten the parts, as clearly represented inFig. 1. Wi-thinth open space between the parts i and k of tl'fe pistenrests the eduction-valve E, having sufficent vertical motion to allowthe passage of. the water,-.and sliding up and down-on the piston 'rod Gby means of a central hole, q, which rod thus serves as a guide to thevalve. From .the bottom of the valve, at a suitable position, projects astem, 'r', downward through one of the spaces, n'n, sufiiciently far totrip the upper valve when the parts are allin the proper position'. -Thetwo principal parts of-the piston arethus united by the piston-rod G,passing through both, and are tightened by means of the nut p, while atthe same time the central shank of the 'piston-rod serves as a guide tothe valve as it rises and falls within, thus allowing the water toescape freely, and always. keeping the valve in place, so that it shu'tstightlyover the port. When the piston is depressed to its lowestposition in the oylinder, as represented in Fig. 1, its botto n willstrike the projectioh g of the 'induction-valve G and trip it, raisingit to the horizontal po-' siton indicated. When in this position, the'pper valve will also be tripped by the contaet of its stem 1' withthe'surface of the-lower valve, no matter what is the position iu'whichit strikes.-

In the drawings, the stern is represented as striking the lower valve onthe opposite side from the contactof the piston with its projection g,but it is manifest that it maystrike it in anyposition (with the stenand projection in coincidence or right-angled to :each other) valve isopen, with its upper surface in a horizontal position, the upper "valvemust be tripped. Thisjs of the greatest consequence, since the support Bof the induction valve is loose, and the valve may be turned in anydirection in the cylinder.

It is obvious that the ordinary induction` valve, which assumes ,aninclined positionwhen open, would not answer the purpose, as

the upper valve would be tripped on but two prts of its 'surface-viz.,at its stem and on t e opposite sidethose parts at right an gles thereto`having but little elevation by the opening of the valte. i i

What I claim as my invention, and desire to secure ;by Letters Patent,is-- i 1. The valve ring or support B, provided with the ribs e e, orequivalent, and with one side, f, made lighter than the other, for thepurpose of retaining said support in place inthe cylinder. substantiallyas herein set forth. 2. In combination with the support B and its valveO, the thin raised valve-seat d, ar-

5. The arrangement and eombination of the piston D, composed principallyof the parts i k, the Valve' E, the piston-rod G, and nut p,substantiallyas and for the purpose herein set forth. I

In witness whereot' I havehereunto 'signed my name in the presence oftwo subscribing witnesses.

BIRDSILL HOLLY.

Witnesses:

T. R. BAILEY, Jr.,

I 'with the same eflect, since when the lower g J. R. OLAPP.

